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author = {{James Frederick} Allen},
 title = {Maintaining Knowledge about Temporal Intervals},
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 issn = {0001-0782},
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 acmid = {358434},
 publisher = {ACM},
 address = {New York, U.S.A.},
 keywords = {interval reasoning, interval representation, temporal interval}
} 

@article{Dyreson1994,
 author = {Curtis Dyreson and Fabio Grandi and Wolfgang K\rq\rq{a}fer et al.},
 title = {A Consensus Glossary of Temporal Database Concepts},
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 publisher = {ACM},
 address = {New York, NY, USA}
}

article{Dyreson1994,
 author = {Curtis Dyreson and Fabio Grandi and Wolfgang K\rq\rq{a}fer and Nick Kline and Nikos Lorentzos and Yannis Mitsopoulos and Angelo Montanari and Daniel Nonen and Elisa Peressi and Barbara Pernici and {John F.} Roddick and {Nandlal L.} Sarda and {Maria Rita} Scalas and Arie Segev and {Richard Thomas} Snodgrass and {Mike D.} Soo and Abdullah Tansel and Paolo Tiberio and Gio Wiederhold},
 title = {A Consensus Glossary of Temporal Database Concepts},
 journal = {ACM SIGMOD Record},
 volume = {23},
 issue = {1},
 month = {March},
 year = {1994},
 issn = {0163-5808},
 pages = {52-64},
 numpages = {13},
 acmid = {181560},
 publisher = {ACM},
 address = {New York, NY, USA}
} 

@article{Dubois89,
author={Didier Dubois and Henri Prade},
journal={Systems, Man and Cybernetics, IEEE Transactions on}, 
title={Processing Fuzzy Temporal Knowledge},
year={1989},
month={jul/aug},
volume={19},
issue={4},
pages={729-744},
issn={0018-9472}
}

@inproceedings{Nascimento95,
    author = {{Mario A.} Nascimento and {Margaret H.} Eich},
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    editor = {},
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    address = {},
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    publisher = {}
}

@inproceedings{Billiet:Pons:Matthe:DeTre:Pons:2011:BipolarFuzzy,
  author =        {Billiet, Christophe and Pons, Jose Enrique and Matth\'e, Tom and De Tr\'e, Guy and Pons Capote, Olga},
  booktitle =     {Lecture Notes in Artificial Intelligence},
  title =         {Bipolar Fuzzy Querying of Temporal Databases},
  volume =        {7022},
  publisher =     {Springer},
  pages =         {60-71},
  year =          {2011},
  address = {Ghent, Belgium},
month = {Octobre},
note = {}
}

@book{Dubois:Prade:1988:PossibilityTheory,
author = {Didier Dubois and Henri Prade},
title = {Possibility Theory: An Approach to Computerized Processing of Uncertainty},
publisher = {Plenum Press},
volume = {},
number = {},
series = {},
address = {New York},
edition = {},
year = {1988},
month = {},
note = {}
}

article{Virant199639,
 	title = "Attention to time in fuzzy logic",
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 	volume = "82",
 	number = "1",
 	pages = "39 - 49",
 	year = "1996",
 	author = "J. Virant and N. Zimic"
 }


ARTICLE{35337,
 	author={Dubois, D. and Prade, H.},
 	journal={Systems, Man and Cybernetics, IEEE Transactions on}, title={Processing fuzzy temporal knowledge},
 	year={1989},
 	month={jul/aug},
 	volume={19},
 	number={4},
 	pages={729 -744}
 	}



















inproceedings{343607,
author={Mitra, D. and Srinivasan, P. and Gerard, {M.L.} and Hands, {A.E.}},
booktitle={Fuzzy Systems, 1994. IEEE World Congress on Computational Intelligence., Proceedings of the Third IEEE Conference on}, 
title={A Possibilistic Interval Constraint Problem: Fuzzy Temporal Reasoning},
year={1994},
month= {jun},
volume={2},
number={},
pages={1434-1439},
ISSN={}
}

@inproceedings{343607,
author={Mitra, D. and et al.},
booktitle={Fuzzy Systems, 1994. IEEE World Congress on Computational Intelligence., Proc. of the Third IEEE Conference on}, 
title={A Possibilistic Interval Constraint Problem: Fuzzy Temporal Reasoning},
year={1994},
month= {jun},
volume={2},
number={},
pages={1434-1439},
ISSN={}
}

@article{Jensen91,
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 acmid = {627484},
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}

@inproceedings{Snodgrass84,
 author = {Snodgrass, Richard},
 title = {The Temporal Query Language TQuel},
 booktitle = {Proc. of the 3rd ACM SIGACT-SIGMOD Symposium on Principles of Database Systems},
 series = {PODS '84},
 year = {1984},
 isbn = {0-89791-128-8},
 location = {Waterloo, Ontario, Canada},
 pages = {204-213},
 numpages = {10},
 acmid = {588041},
 publisher = {ACM},
 address = {New York, NY, USA}
}

@INPROCEEDINGS{655777,
author={Bohlen, {M.H.} and Busatto, R. and Jensen, {C.S.}},
booktitle={Proc. of the 14th International Conference on Data Engineering},
title={Point-versus Interval-based Temporal Data Models},
year={1998},
month={feb},
volume={},
number={},
pages={192-200},
ISSN={1063-6382}
}

@mastersthesis{Lin97,
author = {Hong Lin and {Christian S.} Jensen (codirector) and {Michael H.} Bohlen and Renato Busatto and Heidi Gregersen and Kristian Torp and {Richard T.} Snodgrass (codirector) and Anindya Datta and Sudha Ram},
title = {Efficient Conversion Between Temporal Granularities},
year = {1997},
school = {The University of Arizona}
}

@inproceedings{Cru97,
	title="A Theoretical Fuzzy Time Model Based on Granularities",
	booktitle = "Proc. of the 5th European Congress on Intelligent Techniques and Soft Computing",
	author="Van der Cruyssen, B. and De Caluwe, R. and De Tr\'{e}, G.",
	year="1997",
	month="Sep",
	publisher="ELITE Foundation",	
	pages="1127-1131"
}

@article{ohlbach04,
author = {{Hans J.} Ohlbach},
title = {Relations Between Fuzzy Time Intervals},
journal ={Temporal Representation and Reasoning, International Syposium on},
volume = {0},
issn = {1530-1311},
year = {2004},
pages = {44-51},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA}
}

@incollection {nagypal03,
   author = {Nagyp\rq{a}l, G\rq{a}bor and Motik, Boris},
   title = {A Fuzzy Model for Representing Uncertain, Subjective, and Vague Temporal Knowledge in Ontologies},
   booktitle = {On The Move to Meaningful Internet Systems 2003: CoopIS, DOA, and ODBASE},
   series = {Lecture Notes in Computer Science},
   publisher = {Springer Berlin / Heidelberg},
   isbn = {},
   pages = {906-923},
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   year = {2003}
}


@article{Medina94gefred.a,
	author = "{J.M.} Medina and Olga Pons and {J.C.} Cubero",
	title = "GEFRED. A Generalized Model of Fuzzy Relational Databases",
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	year = "1994",
	volume = "76",
	issue = {1-2},
	pages = "87-109"
}

@incollection {Gal98,
   author = {Galindo, Jos\rq{e} and Medina, Juan and Pons, Olga and Cubero, Juan},
   title = {A Server for Fuzzy SQL Queries},
   booktitle = {Flexible Query Answering Systems},
   series = {Lecture Notes in Computer Science},
   editor = {Andreasen, Troels and Christiansen, Henning and Larsen, Henrik},
   publisher = {Springer Berlin / Heidelberg},
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   pages = {164-174},
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   year = {1998}
}

 
INPROCEEDINGS{Qia09,
	title="Visualising Rough Time Intervals in a Two-Dimensional Space",
	author="Qiang, Yi and Asmussen, Katrin and Delafontaine, Matthias and De Tr\'{e}, Guy and Stichelbaut, Birger and De Maeyer, Philippe and Van De Weghe, Nico  ",
	year="2001",
	month="Jul",
	booktitle=Proc. of the Joint 2009 International Fuzzy Systems Association World Congress and 2009 European Society of Fuzzy Logic and Technology Conference"
}

@INPROCEEDINGS{Pon11a,
	title="An Open Source Framework for Fuzzy Representation and Querying in Fuzzy Databases",
	author="Pons, Jose Enrique and Pons, Olga and Blanco Medina,Ignacio",
	year="2011",
	month="March",
	booktitle="Proc. of the IADIS International Conference Informations Systems",
 isbn = {978-972-8939-47-2},
editor = {Miguel Baptista Nunes, Pedro Isaías, Philip Powell}
}

@ARTICLE{schockaert08,
author={Schockaert, S. and De Cock, M. and Kerre, E.E.},
journal={Fuzzy Systems, IEEE Transactions on}, title={Fuzzifying Allen's Temporal Interval Relations},
year={2008},
month={april},
volume={16},
number={2},
pages={517-533},
ISSN={1063-6706}
}

@Article{Dubois:jucs_9_9:fuzziness_and_uncertainty_in,
  author =     "Didier Dubois and A. HadjAli and Henri Prade",
  title =      "Fuzziness and Uncertainty in Temporal Reasoning",
  journal =   "Journal of Universal Computer Science",
  year =       "2003",
  volume =     "9",
  number =     "9",
  pages =      "1168--1194",
  month =      "jan"
}

@unpublished{Pon11,
author = { Pons, Jos\'e Enrique and et al.},
title= { Possibilistic Evaluation of Sets},
year = {2011},
note = {Submitted to the International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems}
}

unpublished{Pon11,
author = { Pons, Jos\'e Enrique and Bronselaer, Antoon and De Tr\'e, Guy and Pons, Olga},
title= { Possibilistic Evaluation of Sets},
year = {2011},
note = {Submitted to the International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems}
}

@article{Garrido2009,
		author = {Garrido, Carmen and Mar\'{\i}n, Nicol\'{a}s and Pons, Olga},
		issn = {0218-4885},
		journal = {International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems},
		number = {Supplementary Issue 1},
		pages = {173-192},
		title = {Fuzzy Intervals To Represent Fuzzy Valid Time in a Temporal Relational Database},
		volume = {17},
		year = {2009}
}

@article{Dubois88b,author = {Didier Dubois and Henri Prade},
title = {Incomplete Conjunctive Information},
journal = {Computers {\&} Mathematics with Applications},
volume = {15},
issue = {10},
year = {1988},
issn = {0898-1221},
eissn = {},
pages = {797-810},
numpages = {14},
acmid = {},
publisher = {Pergamon Press},
address = {Oxford, U.K.},
}

@article{Dubois1983,
author = {Didier Dubois and Henri Prade},
title = {Ranking Fuzzy Numbers in the Setting of Possibility Theory},
journal = {Information Sciences},
volume = {30},
issue = {3},
year = {1983},
issn = {0020-0255},
eissn = {},
pages = {183-224},
numpages = {42},
acmid = {},
publisher = {Elsevier Science Publishing Co. Inc.},
address = {52 Vanderbilt Ave., New York, U.S.A.}
}

@BOOK{klein94,
   author = "Wolfgang Klein",
   title = "Time in Language",
   publisher = "Routledge",
   address = {London, U.K.},
   year = 1994
   }
   
article{devos94,
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        year={1994},
        title={Modelling Vague Lexical Time Expressions by Means of Fuzzy Set Theory},
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        number={3},
        pages={189-194}
}

@article{devos94,
        author={Devos,F. and et al.},
        year={1994},
        title={Modelling Vague Lexical Time Expressions by Means of Fuzzy Set Theory},
        journal={Journal of Quantitative Linguistics},
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        pages={189-194}
}

@article{zadeh65,
author = {{Lotfi A.} Zadeh},
title = {Fuzzy Sets},
journal = {Information and Control},
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year = {1965},
issn = {0019-9958},
eissn = {},
pages = {338-353},
numpages = {16},
acmid = {},
publisher = {Academic Press},
address = {},
keywords = {}
}


@article{devos98,
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        year={1998},
        title={Granularity in the Interpretation of Around in Approximative Lexical Time Indications},
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}

@book{Shafer:1976:AMathematical,
author = {Glenn Shafer},
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publisher = {Princeton University Press},
volume = {},
number = {},
series = {},
address = {},
edition = {},
year = {1976},
month = {},
note = {}
}

@article{Bolour82,
 author = {Bolour, A. and Anderson, T. L. and Dekeyser, L. J. and Wong, H. K. T.},
 title = {The Role of Time in Information Processing: a Survey},
 journal = {ACM SIGMOD Record},
 volume = {12},
 issue = {3},
 month = {April},
 year = {1982},
 issn = {0163-5808},
 pages = {27-50},
 numpages = {24},
 acmid = {984508},
 publisher = {ACM},
 address = {New York, NY, U.S.A.}
} 




